84678688 has 24 divisors (see below), whose sum is σ = 169540560. Its totient is φ = 41620800.

The previous prime is 84678593. The next prime is 84678689. The reversal of 84678688 is 88687648.

It is not an unprimeable number, because it can be changed into a prime (84678689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20538 + ... + 24313.

It is an arithmetic number, because the mean of its divisors is an integer number (7064190).

Almost surely, 2^84678688 is an apocalyptic number.

It is an amenable number.

84678688 is an abundant number, since it is smaller than the sum of its proper divisors (84861872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84678688 is a wasteful number, since it uses less digits than its factorization.

84678688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44920 (or 44912 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 55.

The square root of 84678688 is about 9202.1023684808. The cubic root of 84678688 is about 439.1282464236.

The spelling of 84678688 in words is "eighty-four million, six hundred seventy-eight thousand, six hundred eighty-eight".